SI5345 Jitter Atitehuator: Tsambali, Mapulogalamu, ndi Zojambula za Dongosolo
2024-10-10 826

Mukamapanga makina amagetsi omwe amafunikira nthawi yolondola komanso yodalirika nthawi, kuchepetsa kwa Jiter ndi kuchulukitsa kwa mawotchi ndipo kuchulukitsa kumafunikira zinthu zofunika kwambiri.Masitepe a Si5345 amayenda pamavuto, akupereka yankho lodulira lomwe opanga mafakitale osiyanasiyana akutembenukira kwa magwiridwe ake apamwamba.Chipangizochi sichimachepetsa Jitter - chimathetsa, chifukwa cha kugwiritsa ntchito kwake kwa DSPLL ™.Kaya mukukonza malo opangira mafomu, kukulitsa matelefoni zomangamanga, kapena makina ofalitsa mavidiyowo, si5345 imafunikira mwachinsinsi kuti zonse zitheke.Munkhaniyi, tisunthira mwamphamvu kuthekera kwa maluso a jitter iyi ndikuwunika momwe zimasinthira mawonekedwe a pakompyuta yothamanga kwambiri.

Kataloji

Kodi si5345 ndi chiyani?

A Si5345, adakondwerera kuchitapo kanthu, amachita ngati chingwe chambiri cha Jitter ndi clock clubliter.Zimaphatikizira matekinoloje apamwamba kwambiri kuti apange chilengedwe cha mawotchi pa nthawi iliyonse ikachepetsa Jitter, madera oyenera kulondola.

Chimodzi mwazinthu za Sindime ya Si5345 ndi kamvedwe kake kosokoneza Jitter ndi kuchulukitsa mawotchi osagwirizana.Kukhazikika kwa malo otsekedwa a Plveser (Pll) ndi masitepe abwino kwambiri owoneka bwino kwambiri njira, imayenda bwino popanga zingwe zokhazikika, zotsika-zotchingira za jisy kuchokera ku zoyika phokoso.Izi zimapangitsa kuti kudalirika komanso kugwirira ntchito bwino m'minda yovuta ngati matelefoni, malo opangira deta, komanso othamanga kwambiri.

Kukhazikitsidwa kwa SI5345

Chip cha Si5345 chimakhala ndi mawonekedwe ovuta a pini yovuta yomwe imathandizira pakugwiritsa ntchito mosiyanasiyana.Maziko akuphatikizanso zikhomo zamphamvu, zikhomo pansi, ndikutulutsa zikhomo, ndi zikhomo, aliyense wokhala ndi ntchito yosiyana ndi chip.Kuzindikira kusintha kumeneku kumatha kukulitsa zotsatira.

Mtundu wa pini	Kaonekeswe	Kufunikira
Mphamvu ndi zikhomo	Zikhomo izi ndizofunikira pakuchita chip.Chake Kulumikizana kumalimbitsa ntchito ndikuchepetsa chiopsezo cha kuperewera kwa zakudya.	Amawonetsa kuchuluka kwa phokoso, kugawa mphamvu kwamphamvu, komanso kutsuka Zovuta zamagetsi m'magulu ophatikizidwa.
Zikhomo Zolowera	Zikhomo izi zimagwira ngati kanyumba kolumikizana, kulandira zizindikiro kofunikira pokonza.Amafuna kasinthidwe kolondola kuti mupewe chizindikiro zolakwika zomasulira.	Kusintha kosavomerezeka kumatha kuyambitsa zolephera zadongosolo.Kukhazikitsa koyenera ndi Chofunika pa ntchito yolondola ya chip polandila zizindikiro zoyika.
Zikhomo Zotuluka	Zithunzi zotuluka zimalumikizana ndi zikwangwani zotsatizana dongosolo.Kusintha kwawo ndikofunikira kuti tisunge umphumphu.	Kusintha kolondola komanso kuwunika pafupipafupi ndi kiyi kwa Kusungabe kukhulupirika chizindikiro ndikupewa kulowa m'malo otulutsa.
Zikhomo Zapadera	Zikhomo izi zimaperekanso magwiridwe antchito monga calleration, kunyoza, ndi kuyesa mitundu.Kugwiritsa ntchito bwino zinthuzi kungasinthe chitukuko ndikuwonjezera kusinthasintha.	Kugwiritsa ntchito zikhomo izi kungakuthandizeni kusinthasintha kwa dongosolo, kulowa Kukula, ndikupereka ulamuliro wambiri pa dongosolo.

Makhalidwe a Si5345

Kaonekedwe	Kaonekeswe
Mbadwo Watsopano	Amapanga kuphatikiza kulikonse kwa maulendo otulutsa kuchokera ku zinthu zilizonse pafupipafupi.
Jitter	Ultra-yotsika mtengo wa 90 femtundondi (fs) mizu - RMS.
Zolowetsa pafupipafupi	- yosiyanitsa: 8 KHz-750 MHz
	- lvcmos: 8 khz-250 mhz
Kutulutsa pafupipafupi	- yosiyanitsa: 100 hz mpaka 1028 mhz
	- lvcmos: 100 hz mpaka 250 mhz
Jitter yolumikizira bandwidth	Pulogalamu ya Pulogalamu ya Jitter yolumikizira bandwidth: 0.1 HZ mpaka 4 KHz.
Kumvera	Kukumana ndi G.8262 EEC Njira 1, 2 (Synchronous Ethernet - Snence).
Zotulutsa zosokoneza	Zotsatira zosinthika kwambiri zogwirizana ndi LVDs, lvpecl, lvcmos, CML, ndi HCSL yokhala ndi matalikidwe osayina.
Kuyang'anira udindo	Zowunikira monga Los (kutayika kwa chizindikiro), OOF (kuchokera Pafupipafupi), lol (kutayika kwa loko).
Kusintha kolowera koloko	Imathandizira kusintha kolowera koopsa, kokha kapena kokha.
Wotchi yothandizira	Maloks kuti akhomedwe kozungulira.
Kugwiritsa Ntchito Modes	- Mafuta aulere ndi osuta
	- Njira Zosachedwa Zero
Mbali Yachangu	Chingwe chachangu cha ma bandwidths otsika kuti atsegule mwachangu pafupipafupi.
Zosintha zopanda pake	Zosalala, zosasangalatsa, zotuluka zimasinthasintha opaleshoni.
Kutulutsa kwa Clock (DCO) Mode	Amathandizira dco mode ndi ma sitepe ngati ochepa ngati magawo 0,001 pa Bilion (ppb).
Mphamvu yamagetsi	- VDD: 1.8 V ± 5%
	- Vdan: 3.3 V ± 5%
Limanena kuti koloko limatulutsa magetsi	Makina oyimilira oyimira palokha amathandizira 3.3 v, 2.5 v, kapena 1.8 V.
Mawonekedwe	Imathandizira I2C kapena SPI yolumikizirana.
Kukumbukira kukumbukira	Mu-dera lozungulira ndi kukumbukira kosasunthika kwa osinthasintha Kusintha.
Mapulogalamu osintha	Pulogalamu ya BlackBirder PRE PRIVIFIVIFIVIFIVE KUSINTHA KWA DZIKO LAPANSI NDIPO khazikitsa.
Kukula kwa phukusi	SI5345: 4 Kulowetsa, 10 Kutulutsa, mu 64-QFN 9 × 9 mm phukusi.
Kutentha	Imagwira ntchito kutentha kuchokera -40 ° C kwa + 85 ° C.
Kukhutisidwa	PB-Free ndi Rohs-6 yolumikizira, onetsetsani zachilengedwe.

Zolemba zaluso

Silicon labs Sierry34A-b-g-g-g-g-g-gm's and ad ndi magawo akhoza kuwunikidwa mosamala muzolemba zofananira za malonda.Izi zalembedwa:

Mtundu	Palamu
Nthawi Yotsogolera Fax	Masabata 6
Mtundu Wokwera	Phiri
Phukusi / mlandu	64-vfqfn yowululidwa
Chiwerengero cha zikhomo	64
Kutentha	-40 ° C mpaka 85 ° C
Cakusita	Treyi
Yosindikizidwa	2014
Khodi ya Jesd-609	e4
Gawo	Osati zamapangidwe atsopano
Matenda anyezi (MSL)	2 (1 chaka)
Kuchuluka kwa ziyeso	64
Khodi ya Ecn	Khutu
Mapeto a terminal	Nickel / palladium / golide / siliva (ni / pd / au / ag)
Zowonjezera	Imafunanso US 3.3V
Magetsi - kupereka	1.71V mpaka 3.47V
Udindo	Quad
Fomu Yamtundu	Palibe kutsogolera
Kutentha kwa peak	260 ° C
Kupereka magetsi	1.8V
Ma terminal	0.5mm
Kuchuluka kwake	712.5mhz
Nthawi @ Peak Freelow kutentha (max)	Masekondi 40
Zopangidwa	Cml, hcsl, lvcmos, lvds, lvpecl
Chiwerengero cha mabwalo	1
Mtundu wa IC	Jenereto ya wotchi, puroser mwachindunji
Zinthu zolowa	Lvcmos, lvds, lvpecl, kristalo
Chiwerengero - cholowa	5:10
Clock / Crystal pafupipafupi	54mhz
Mapilo	Inde
Kusiyanitsa - kulowetsa	Inde / Inde
Wogawa / wambiri	Inde / Ayi
Utali	9mm
Kutalika kwa (max)	0.9mm
M'mbali	9mm
Mkhalidwe wa Roshas	Rohs

Si5345 block chithunzi

Zidziwitso za SI5345

SI5345 imabwera mu 64-Pin quad flack osasunthika (QFN) phukusi, kuyeza 9 × 9 mm.Paketiyi imapereka mawonekedwe abwinobwino komanso magwiridwe abwinobwino kwambiri, ndikupangitsa kuti ikhale yoyenera kwambiri pakugwiritsa ntchito magetsi apamwamba kwambiri.Phukusi la 64-QFn limadziwika chifukwa chokulira bwino, zomwe zimapangitsa kuchepetsa kwa pcb.M'malo mwa magetsi amakono, kusamalira malowa kumathandizira kwambiri pakupanga mapangidwe ochulukirapo komanso apamwamba.Paukadaulo waukadaulo, phukusi ili limayamikiridwa chifukwa cha kusakhalitsa kocheperako komanso malo ogulitsira a SI5345 omwe ali ndi ntchito yodalirika pazinthu zosiyanasiyana.

M'mbali	Min	Nom	Max
A	0,8	0.85	0,9
A1	0	0.02	0.05
b	0.18	0.25	0,3
D	-	9.00 BSC	-
D2	5.1	5.2	5.3
e	-	0.50 BSC	-
E	-	9.00 BSC	-
E2	5.1	5.2	5.3
L	0,3	0,4	0,5
aaa	-	-	0.1
bankha	-	-	0.1
ccc	-	-	0.08
dD	-	-	0,1

SI5345 Kugwiritsa ntchito mitundu yonse

SI5345 imapeza ntchito zochulukirapo muminda yosiyanasiyana ya otn muxpondars ndi makhadi ogwirira ntchito, makhadi a ethernet (10/40/100Makhadi a Line, akufalitsa video, ndi mayeso ndi muyeso.Kutsatira kwake ku iTu-t g.8262 (simiyo) miyezo imawunikira kusintha kwake.

• Makhadi Opanga Makhadi: Makhadi a ma network, makamaka omwe amathandizira mitengo yayitali ngati 10/40/100 g, ikolola zabwino kuchokera ku SI5345.Kuphatikiza kwa si5345 mkati mwa makhadi a mzerewu kumatha kupindika ndikuchepetsa jitter, ndikofunikira kuti mufanane ndi kufalikira kwa ma network.Ndi si5345, Enterprise ndi onyamula ma intaneti amatha kukwaniritsidwa komanso kulondola koyenera chifukwa cha kuyenda kopanda pake, moyenera kumawonjezera katundu wa deta ndi mapangidwe owoneka bwino.Kuphatikizika kwa ukadaulo wapamwamba wa Si5345 kumathandizira kudalirika kwa intaneti ndikuthandizira kutanthauza kulumikizana kwamakono.

• Synchroous ethernet (sikisi): Ethernner Ethernet imadalira pa si5345 kuti ikhale yokhazikika, yomwe ndi yofunika kwambiri kuti ikhale yolumikizira netyeredwe.Kulumikizana ndi ITU-TU-T R.8262 Malamulo a SI5345 kumakwaniritsa zokhumba zokhudzana ndi zophatikizika, zofunikira kwambiri pakulankhula kwa telefoni.Chifukwa chake, mothandizidwa ndi si5345, imachepetsa kwambiri packet v ariat iariat ion, yolimbikitsira kukhulupirika kwa data mwachangu (Gbe / 10 Gbe).

• Otn Muxpondrs ndi Kutumiza: Zojambula zoyendera magetsi (Otn) zimadalira kwambiri pa sitepe ya mux345 ya ma muxpondrs, kuphatikiza ndi kufalitsa mitsinje yambiri paphiri limodzi.SI5345 imawonjezera kuthekera kwa OTn kuwongolera ma bandwidth apamwamba pomwe akusunga zolumikizana, kofunikira kwa malo ophatikizira madera ndi kulumikizana kwakutali.Kuphatikizika uku kumachepetsa latency ndi jitter, ndikuwonetsetsa kuti kufalikira kwazinthu zapamwamba kwambiri kuposa kugwira ntchito bwino.

• Chonyamula Ethernet Switch: Carrier Ethernet Switch, omwe amaphatikizidwa nawo magalimoto pamaneti ochulukirapo, amagwiritsa ntchito si5345 kuti agwire ntchito.A Si5345 amaonetsetsa nthawi yolumikizana ndi kulumikizana kofunikira kuti musunge bwino (QOS) ndi kugwiritsa ntchito ma network.Kugwiritsa ntchito nthawi yayitali kumathandizira kusiyanitsa pakati pa mitundu ya magalimoto ndi kuyimilira, zomwe zimatsogolera kudalirika komanso zodalirika.Kukhazikitsa kwa zisinthidwe izi, zomwe zimakulitsa ndi nthawi ya sitepe ya Si5335, imakhala yopindulitsa kwambiri mu mzinda wa mzinda ndi ma netiweki.

• Seet / Sdh Line Makhadi: Seet / Sdh Ma Networks, omwe amadziwika kuti kulumwa kwawo, kupeza SI5345 kofunikira kuti mukumane ndi zofunikira za nthawi.Kukhazikika kwambiri komanso kukhazikika komwe kunaperekedwa ndi zigawo za Si5345 ndikuthandizira makadi a Sont / SDh, omwe amagwiritsidwa ntchito mu telecommunication ndi kutumiza deta.Izi ma network, maziko a telefoni yazalevani, zimadalira sitepe ya si5345 kuti ibweretse mosasinthasintha komanso yamphamvu kwambiri.

• Video Yakufalitsa: Mu mavidiyowa amafalitsira, kulumikizana ndikofunika kwambiri pakugwirizanitsa ma audio ndi kanema.Kulondola kwa si5345 kumatsimikizira kuti nthawi yolumikizira nthawi yake imafunikira kuti mutumizidwe kwakanthawi kanema wapa kanema, kuchepetsa ma etency ndikukweza zomwe wowonera.Chipangizochi chimathandizira otakata omwe akuwonetsa kanema wopanda pake, wotsutsa m'mapaziwo.

• Kuyesa ndi kuyeza zida: Kuyesa ndi Kuyeza Zida zamakampani osiyanasiyana zimapindula ndi kuthekera kwakukulu kwa si5345.Kudulira kolondola mu zida izi kumathandizira kutsimikizika kwa dongosolo ndi kudalirika kwa dongosolo ndi kudalirika, kuonetsetsa kutsatira miyezo yokhazikika.Kuphatikiza kwa zinthu zolondola ngati si5345 kumathandizira kuchita bwino ndi kukhulupirika kwa miyeso, ndikofunikira pakufufuza, chitukuko, ndi chitsimikizo chabwino.

SI5345 wopanga

Silicon labs (Nasdaq: Slab) yasemphana ndi njira yothetsera matenda omwe amathandizira zovuta pa intanetiZogulitsa zawo zimayimira ntchito zapadera, mphamvu zamagetsi, kulumikizana kwakukulu, komanso kuphweka kophweka.Kampaniyi imakula bwino pamavuto osokoneza bongo, kupatsidwa mphamvu ndi gulu la akatswiri omwe si akatswiri omwe si akatswiri okha koma odziwika bwino opambana.